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Issue: Vol. 717 No. 3: 12 Sept. 2025
Type: Article
Published: 2025-09-12
DOI: 10.11646/phytotaxa.717.3.4
Page range: 283-291
Abstract views: 1178
PDF downloaded: 13

Revisiting the interspecific relationships of the only hexaploid species within Fagopyrum (F. tibeticum): a comprehensive analysis from cytology, morphology, and molecular phylogenetics

Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Center for Integrative Conservation Biology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
buckwheat cytology morphology shrub Eudicots

Abstract

Fagopyrum tibeticum is a small woody shrub, which was initially classified under the genus Parapteropyrum (Polygonaceae) as Parapteryrum tibeticum. However, recent molecular evidences has shown that it should belong to Fagopyrum. By integrating cytological, morphological, and molecular biology evidences, we compare F. tibetium with the other Fagopyrum species, once again proving that F. tibeticum should belong to the Fagopyrum genus. Moreover, F. tibeticum is the only existing hexaploid species in the genus Fagopyrum. The speciation of F. tibeticum may be related to the uplift of the Qinghai Tibet Plateau and the distinctive climate environment.

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How to Cite

Li, W., Tang, Y., Zhang, K., He, Y., Hao, M., Liu, X., Li, B. & Zhou, M. (2025) Revisiting the interspecific relationships of the only hexaploid species within Fagopyrum (F. tibeticum): a comprehensive analysis from cytology, morphology, and molecular phylogenetics. Phytotaxa 717 (3): 283–291. https://doi.org/10.11646/phytotaxa.717.3.4